Common values
- 1 hour = 60 min = 3600 s
- 1 day = 24 h = 86 400 s
- 1 year (Gregorian) ≈ 365.2425 days = 31 556 952 s
- 1 month (averaged) ≈ 30.44 days = 2 629 746 s
FAQ
Why is "1 month" not exactly 30 days?
Calendar months are 28–31 days. For unit conversion we use the year-averaged value 365.2425 / 12 ≈ 30.44 days. For exact month math, use the date difference calculator.